Hi Gurus, need your kind advise.

I'm using Lightroom 3 to edit and playback my .DNG photos but the slightshow performance is a drag on my macpro, I wonder why it's so? I see that lightroom takes at least 2 secs to 'render' the .dng files and my slightshow duration is 3 secs. All I see is bad quality slideshow.

Is this the correct way to playback your .dng files or do I need to tweak any configuration? I don't think it's my macpro's performance issues (I dunno).

I shoot uncompressed dng files, your kind advise pls and thanks.